Reflective Three-Dimensional Display Device and Method for Manufacturing the Same

Abstract

A reflective 3D display device and manufacturing method thereof This method includes following steps: providing a template with at least one concave parts-trap and at least one metallic microsphere, and tilting the template to form a first included angle, between the concave parts-trap and a horizontal plane, in a first direction, and a second included angle, between the concave parts-trap and the horizontal, in a second direction. When the metallic microspheres are disposed in the concave parts-trap, the metallic microspheres would self-organize to intrinsic potential minima, and then an adhesive layer and a gel are provided for removing which and fixing the relative positions between which respectively. A portion of each metallic microsphere is exposed form the gel, which is used to reflect light to 3D space, such that 3D images viewable with naked eye are achieved and the perspective phenomenon occurring in 3D images is reduced.

1 . A method for manufacturing reflective three-dimensional (3D) display device, applicable to a screen of a display device, comprising the following steps of:
 providing a template with at least one concave parts-trap and at least one metallic microsphere;   tilting the template to form a first included angle, between the concave parts-trap and the horizontal plane, in a first direction, and a second included angle, between the concave parts-trap and the horizontal plane, in a second direction;   disposing the metallic microspheres in the concave parts-trap to make the metallic microspheres self-organize to intrinsic potential minima;   providing an adhesion layer to remove the metallic microspheres from the concave parts-trap; and   providing a gel body, for fixing the relative positions between each metallic microsphere, wherein a portion of each metallic microsphere exposes from the gel body in order to reflect light to 3D space, such that 3D images viewable with naked eye and multi-view 3D images are achieved, and the perspective phenomenon occurs in 3D images is reduced.   
     
     
         2 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the gel body is curable polymer. 
     
     
         3 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the arrangement of the metallic microspheres is simple cubic (s.c), body-centered cubic (b.c.c) or face-centered cubic (f.c.c) in the step that the at least one metallic microsphere is disposed in the concave parts-trap. 
     
     
         4 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the first included angle is between 0˜15 degrees. 
     
     
         5 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the second included angle is between 0˜15 degrees. 
     
     
         6 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the first included angle is equal to the second included angle. 
     
     
         7 . The method for manufacturing reflective 3D display device of  claim 1 , further comprising the following step of:
 removing the adhesion layer from the metallic microspheres after the step that the gel body is provided for fixing the relative positions between each metallic microsphere.   
     
     
         8 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the thickness of the gel body is between 0.1˜5.0 millimeters. 
     
     
         9 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the shape of the metallic microspheres is spherical, concave, polyhedral or geometrical. 
     
     
         10 . The method for manufacturing reflective 3D display device of  claim 1 , wherein the metallic microspheres are mixed with isopropyl alcohol and then the isopropyl alcohol with the at least one metallic microsphere is dripped in the concave parts-trap during the step that the metallic microspheres are disposed in the concave parts-trap to make the metallic microsphere self-organize to the intrinsic potential minima. 
     
     
         11 . A reflective 3D display device, comprising a light emitting diode array, a focusing lens and a reflective display screen, wherein the reflective display screen comprising:
 a plurality of metallic microspheres, for reflecting light to 3D space; and   a gel body, for fixing the relative position of the metal microspheres;   wherein, the plurality of metallic microspheres are embedded in the gel body and a portion of each metallic microsphere exposes from the gel for reflecting light to 3D space in order to produce 3D images viewable with naked eye and multi-view 3D images and reduce the perspective phenomenon occurs in 3D images.   
     
     
         12 . The reflective 3D display device of  claim 11 , wherein the gel body is curable polymer. 
     
     
         13 . The reflective 3D display device of  claim 11 , wherein the arrangement of the metallic microspheres is simple cubic (s.c), body-centered cubic (b.c.c) or face-centered cubic (f.c.c). 
     
     
         14 . The reflective 3D display device of  claim 11 , wherein the thickness of the gel body is between 0.1˜5.0 millimeters. 
     
     
         15 . The reflective 3D display device of  claim 11 , wherein the shape of the metallic microspheres is spherical, concave, polyhedral or geometrical. 
     
     
         16 . The reflective 3D display device of  claim 11 , wherein a surface for reflecting light of an exposed portion of each of the metallic microspheres for reflecting light from is aligned to an imaging pixel generated by a projector.